Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
MI

Mitsumasa Iwamoto

UNUnknown: 2 patents #12,644 of 83,584Top 20%
MKMitsubishi Kasei: 1 patents #404 of 911Top 45%
Ricoh Company: 1 patents #6,936 of 9,818Top 75%
Overall (All Time): #2,323,450 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4939214 Film comprised of at least one monomolecular layer and process for its preparation using a higher alkyl amine Yoshio Imai, Taro Hino, Masa-aki Kakimoto, Masa-aki Suzuki, Toru Konishi 1990-07-03
4921728 Process of making a liquid crystal element Yasuyuki Takiguchi, Akihiko Kanemoto, Kiyohiro Uehara, Yoshio Imai, Taro Hino +2 more 1990-05-01